Home / 927,305.60-1,390,612.80-328,035.20

Finding the Fourth Proportional to 927,305.60, 1,390,612.80 and 328,035.20

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Solution

The fourth proportional to 927,305.60, 1,390,612.80 and 328,035.20 is: 491,930.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,305.60 : 1,390,612.80 = 328,035.20 : x
  2. Step 2: Convert to fraction form
    927,305.60/1,390,612.80 = 328,035.20/x
  3. Step 3: Cross multiply
    927,305.60x = 1,390,612.80 × 328,035.20
  4. Step 4: Simplify right side
    927,305.60x = 456,169,947,970.56
  5. Step 5: Solve for x
    x = 456,169,947,970.56/927,305.60
  6. Step 6: Final answer
    x = 491,930.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.